Design And Realization Of Digital Control System For Switched Reluctance Motor Based On DSP

Firstly, this thesis introduced the development of the SRD system in China and abroad and also expresses the main research aspects. Then it analyzed the configuration characteristic, the structure composing of SR motor, and the control strategy used in this thesis that is current Chopping control at low speed, varying angle & voltage PWM control at high speed. Besides, it presented how to realize the double close-loop and varying angle control strategies.Based on TMS320LF2407A which is made by TI , the control SR motor method adopted double close loop PI digital adjusting, send out phase on-off signal, voltage PWM signal, current chopping signal and integrated the current and voltage protection signals to drive IGBT. And then it presented the hardware design including current and position sensor input circuits, A/D protection circuits, voltage PWM circuit, logic integrated circuit etc. Meanwhile functions and design of every circuit are illuminated detailedly. Finally, the issues of EMC and debugging notices are expressed.In order to prove the correction of the control system design, it gave out the experiment result of hardware and software debugging, and the experience of SR motor. According to the loaded and non-load experience curves it analyzed the waves and provided a conclusion.